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GB/T 18876.3-2008 English PDF

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GB/T 18876.3-2008: Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis -- Part 3: Determining the carbides rating in steels by automatic image analysis and stereology
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GB/T 18876.3-2008English419 Add to Cart 3 days [Need to translate] Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis -- Part 3: Determining the carbides rating in steels by automatic image analysis and stereology Valid GB/T 18876.3-2008

PDF similar to GB/T 18876.3-2008


Standard similar to GB/T 18876.3-2008

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Basic data

Standard ID GB/T 18876.3-2008 (GB/T18876.3-2008)
Description (Translated English) Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis -- Part 3: Determining the carbides rating in steels by automatic image analysis and stereology
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H24
Classification of International Standard 77.040.01
Word Count Estimation 18,191
Date of Issue 2008-05-13
Date of Implementation 2008-11-01
Quoted Standard GB/T 18254-2002; GB/T 13298; GB/T 18876.1; GB/T 18876.2; ISO 5949: 1983; SEP 1520-1998
Regulation (derived from) National Standard Approval Announcement 2008 No.8 (Total No.121)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the basis for GB/T 18254-2002 technical standards for chromium bearing steel carbide fluid analysis, various steps of the automatic image -level analysis conducted carbon ribbon measured. It also describes the application of ISO 5949-1983 for tool steel, bearing steel, carbon ribbon by SEP 1520-1998 levels and special carbide steel ribbon -level automated image measurement methods. This section does not involve pearlite, determination carbide mesh. This section is only recommended as a test method. Right level of acceptance of any steel or other metals were specified. The section on security matters pertaining to the application did not specify.

GB/T 18876.3-2008: Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis -- Part 3: Determining the carbides rating in steels by automatic image analysis and stereology



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Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis Part 3. Determining the carbides rating in steels by automatic image analysis and stereology ICS 77.040.01 H24 National Standards of People's Republic of China Automatic image analysis determination of steel and other metals Microstructure, inclusion content Standard Test Method level Part 3. steel carbide grade Image analysis and stereology Posted 2008-11-01 2008-05-13 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 18876 "automatic image analysis determination of steel and other metals in the microstructure, inclusion content and level of Standard Test Law "is divided into three parts as follows. --- Part 1. Steel and other metal inclusions or second phase tissue content image analysis and stereology; --- Part 2. inclusions in steel image analyte level and stereology; --- Part 3. steel carbide-level image analysis and stereology. This section GB/T Part of 318,876. This section of Appendix A normative appendix. This part is proposed by the China Iron and Steel Association. This part of the National Steel Standardization Technical Committee. This section is drafted. Hubei Xinye Steel Co., Ltd., Beijing University of Technology, Metallurgical Industry Information Standards Institute. Participated in the drafting of this section. Capital Iron and Steel Company, Wuhan Iron and Steel Group Corporation, Huangshi Institute of Technology, Dongbei Special Steel Group Company. The main drafters of this section. Zhaoyong Qiu Shao Peng Xing, Liu right, Luan Yan, Li Desheng, Zhou Lixin. The drafters of some of the participants. the king of social education, Yin Lixin, Chen Chang west, Liu Jixiong, Liu Shengguo, Hean Min.

Introduction

ISO 5949. 1983 tool steel and bearing steel with a standard atlas assessment microscopy distribution of carbides SEP1520-1998 carbide steel profiles series microscopic examination method

3 Terms and Definitions

GB/T 18876.1 and GB/T 18876.2 and established the following terms and definitions apply GB/T 18876 in this section. 3.1 Carbon ribbon And thermal processing direction parallel to the crystalline carbide steel segregation during solidification formed during thermal processing formed or extending The enrichment zone. 3.2 Carbide eliquation Steel during solidification, liquid carbon and alloy enrichment arising Ledeburite metastable eutectic, delay in hot rolling process Directional distribution. Note. Generally considered to belong to trigonal carbide.

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